/*
 * Copyright 2013-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.alibaba.cloud.dubbo.service.parameter;

import org.springframework.beans.factory.BeanClassLoaderAware;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.core.convert.ConversionService;
import org.springframework.format.support.DefaultFormattingConversionService;

import static org.springframework.context.ConfigurableApplicationContext.CONVERSION_SERVICE_BEAN_NAME;
import static org.springframework.util.ClassUtils.resolveClassName;

/**
 * Abstract {@link DubboGenericServiceParameterResolver} implementation.
 *
 * @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
 */
public abstract class AbstractDubboGenericServiceParameterResolver
		implements DubboGenericServiceParameterResolver, BeanClassLoaderAware {

	private int order;

	@Autowired(required = false)
	@Qualifier(CONVERSION_SERVICE_BEAN_NAME)
	private ConversionService conversionService = new DefaultFormattingConversionService();

	private ClassLoader classLoader;

	public ConversionService getConversionService() {
		return conversionService;
	}

	public void setConversionService(ConversionService conversionService) {
		this.conversionService = conversionService;
	}

	public ClassLoader getClassLoader() {
		return classLoader;
	}

	@Override
	public void setBeanClassLoader(ClassLoader classLoader) {
		this.classLoader = classLoader;
	}

	@Override
	public int getOrder() {
		return order;
	}

	public void setOrder(int order) {
		this.order = order;
	}

	protected Class<?> resolveClass(String className) {
		return resolveClassName(className, classLoader);
	}

	protected Object resolveValue(Object parameterValue, String parameterType) {
		Class<?> targetType = resolveClass(parameterType);
		return resolveValue(parameterValue, targetType);
	}

	protected Object resolveValue(Object parameterValue, Class<?> parameterType) {
		return conversionService.convert(parameterValue, parameterType);
	}

}
